DE59308911D1 - Coin detector - Google Patents

Coin detector

Info

Publication number
DE59308911D1
DE59308911D1 DE59308911T DE59308911T DE59308911D1 DE 59308911 D1 DE59308911 D1 DE 59308911D1 DE 59308911 T DE59308911 T DE 59308911T DE 59308911 T DE59308911 T DE 59308911T DE 59308911 D1 DE59308911 D1 DE 59308911D1
Authority
DE
Germany
Prior art keywords
coin
coil
detector
oscillator
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE59308911T
Other languages
German (de)
Inventor
Thomas Seitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IPM INTERNATIONAL SA, GENEVE, CH
Original Assignee
Landis and Gyr Technology Innovation AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Landis and Gyr Technology Innovation AG filed Critical Landis and Gyr Technology Innovation AG
Application granted granted Critical
Publication of DE59308911D1 publication Critical patent/DE59308911D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/08—Testing the magnetic or electric properties
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/02—Testing the dimensions, e.g. thickness, diameter; Testing the deformation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Coins (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Pinball Game Machines (AREA)
  • Noodles (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

An inductive coin detector for detecting the presence of coins (2) in a coin channel (1) by means of a high-frequency alternating magnetic field exhibits a flat coil (3) arranged outside the coin channel (1). A high-frequency alternating magnetic field generated by the coil (3) penetrates perpendicularly to the running direction of the coin (13) through the coin channel (1). The coil (3) is formed from at least one flat spiral conductor arrangement and is a part of the LC oscillator. Together with a measuring circuit, the oscillator circuit forms a detector circuit (4) for detecting a change in the oscillator frequency caused by the presence of the coin (2). The coil (3) and the detector circuit (4) are arranged in the immediate vicinity on a common carrier and can be enclosed in a flat housing. The coin detector can be connected via a three-wire line which comprises a feed line (7) and a signal line (9). <IMAGE>
DE59308911T 1992-06-03 1993-05-15 Coin detector Expired - Fee Related DE59308911D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH178292 1992-06-03

Publications (1)

Publication Number Publication Date
DE59308911D1 true DE59308911D1 (en) 1998-10-01

Family

ID=4218484

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59308911T Expired - Fee Related DE59308911D1 (en) 1992-06-03 1993-05-15 Coin detector

Country Status (6)

Country Link
US (2) US5411126A (en)
EP (1) EP0572847B1 (en)
KR (1) KR0165135B1 (en)
AT (1) ATE170312T1 (en)
DE (1) DE59308911D1 (en)
DK (1) DK0572847T3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997025692A1 (en) * 1996-01-11 1997-07-17 Brandt, Inc. Coin sorter with coin recognition
WO1998005008A1 (en) 1996-07-29 1998-02-05 Quadrum Telecommunications, Inc. Coin validation apparatus
US6896826B2 (en) * 1997-01-09 2005-05-24 Advanced Technology Materials, Inc. Aqueous cleaning composition containing copper-specific corrosion inhibitor for cleaning inorganic residues on semiconductor substrate
GB2331614A (en) 1997-11-19 1999-05-26 Tetrel Ltd Inductive coin validation system
DE10066293B4 (en) 2000-09-29 2007-11-29 Balluff Gmbh Inductive sensor
JP2004227133A (en) * 2003-01-21 2004-08-12 Internatl Currency Technologies Corp Detector of coin receiving device
TWI227502B (en) * 2003-09-02 2005-02-01 Ind Tech Res Inst Precise multi-pole magnetic components and manufacturing method thereof
JP5924686B2 (en) * 2012-09-28 2016-05-25 株式会社日本コンラックス Coin processing equipment
JP6992445B2 (en) * 2017-11-27 2022-01-13 富士電機株式会社 Coin detection antenna and coin processing device
CN112406318B (en) * 2020-11-24 2023-07-21 武汉先同科技有限公司 Ink quantity detection device and method based on inductance technology and ink-jet printer

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185947A (en) * 1959-11-16 1965-05-25 Arf Products Inductive module for electronic devices
FR1532020A (en) * 1967-07-21 1968-07-05 Scheidt & Bachmann Gmbh Device for checking and counting coins in vending machines
US3576244A (en) * 1969-01-08 1971-04-27 Vendo Co Coin acceptor having resistivity and permeability detector
US3901368A (en) * 1974-03-11 1975-08-26 Lance T Klinger Coin acceptor/rejector
US4035695A (en) * 1974-08-05 1977-07-12 Motorola, Inc. Microelectronic variable inductor
US4353453A (en) * 1980-04-10 1982-10-12 Atn Research & Development Corporation Valid coin acceptor for coin actuated apparatus
US4441602A (en) * 1981-12-02 1984-04-10 Joseph Ostroski Electronic coin verification mechanism
US4494100A (en) * 1982-07-12 1985-01-15 Motorola, Inc. Planar inductors
US4574936A (en) * 1983-05-10 1986-03-11 Lance Klinger Coin accepter/rejector including symmetrical dual feedback oscillator
GB2151062B (en) * 1983-11-04 1988-06-29 Mars Inc Coin validators
US4678994A (en) * 1984-06-27 1987-07-07 Digital Products Corporation Methods and apparatus employing apparent resonant properties of thin conducting materials
GB8509609D0 (en) * 1985-04-15 1985-05-22 Coin Controls Discriminating between different metallic articles
JPH0744405Y2 (en) * 1989-03-07 1995-10-11 ローム株式会社 PCB cutting equipment
EP0500367A3 (en) * 1991-02-20 1993-07-21 Telkor (Proprietary) Limited Coil arrangement and static measuring device
US5133118A (en) * 1991-08-06 1992-07-28 Sheldahl, Inc. Surface mounted components on flex circuits

Also Published As

Publication number Publication date
KR940001014A (en) 1994-01-10
EP0572847A1 (en) 1993-12-08
KR0165135B1 (en) 1999-03-20
DK0572847T3 (en) 1999-05-25
EP0572847B1 (en) 1998-08-26
US5411126A (en) 1995-05-02
ATE170312T1 (en) 1998-09-15
US5575057A (en) 1996-11-19

Similar Documents

Publication Publication Date Title
CA1038055A (en) Coin arrival sensor using inductive colls
CA2302922A1 (en) Dual coil coin identifier
ES8303714A1 (en) Magnetic surveillance system with odd-even harmonic and phase discrimination
EP0305013A3 (en) Inductive proximity sensor
ATE170312T1 (en) COIN DETECTOR
US3986104A (en) Dual frequency metal detector system
EP0203702A3 (en) Moving coin validation
US5117746A (en) Fume hood sash sensing apparatus
US20040155651A1 (en) Flux control system for metal detectors
US3601691A (en) Metal detector responsive to small metallic objects for differentiating between ferrous and nonferrous objects
SE8702455L (en) DEVICE FOR THE DETECTION OF DOCUMENTS
US6216843B1 (en) Apparatus for taking out information using magnetic sensor and carrying out test of article by using that information
US5028870A (en) Sensor system method and apparatus for discrimination of metallic objects based on a variation in self inductance
ATE76515T1 (en) DETECTING DIRECT CURRENT MAGNETIC FIELD CHANGES.
KR840006076A (en) RF power meter
GB1372516A (en) Magnetic device
US5650729A (en) Conductive strip detector
KR940001954B1 (en) Electronic coin discriminating apparatus
FR2352307A1 (en) Magnetic field measurement with bar-type magnetometer - uses several magnetometers aligned at predetermined intervals inside bar-shaped housing
JPS6166169A (en) Temperature compensation type current sensor
KR940006061A (en) Detection apparatus and detection method for fraudulent card use
AU753651B2 (en) Induction sensor
US3185923A (en) Magnetic inspection device having variable intensity audible alarm means responsive to spacing between device and test piece
US6057683A (en) Induction sensor having conductive concentrator with measuring gap
US5334935A (en) Apparatus and method for detecting weak magnetic fields having a saturable core shaped to cancel magnetic fields parallel to the core

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: IP-TPG HOLDCO S.A.R.L., LUXEMBOURG, LU

8327 Change in the person/name/address of the patent owner

Owner name: IPM INTERNATIONAL SA, GENEVE, CH

8339 Ceased/non-payment of the annual fee